This map is the result of a collaboration between our Offshore
Resource Exploration group and our geologic mapping section. It is the first
combined onshore-offshore geologic map that NJGWS has produced.

Correlation of the onshore and offshore data sets was made by comparing sediment
characteristics and depositional settings of the geologic units. Offshore data sets
include high-resolution seismic profiling and drilling of shallow cores to verify
subsurface sediment characteristics and structures. The age of offshore units was
established by dating organic material found in the shallow cores. The laterally
extensive seismic profiles, linked with age dates and sediment analysis, enabled
correlation with the onshore geology.

The NJDEP Office of Engineering and Construction's Coastal Engineering Program and
the Bureau of Ocean Energy Management (formerly the Minerals Management Service) of the
U.S. Department of Interior, funded acquisition of the data. Analysis and production was
supported by the U. S. Geological Survey, National Cooperative Geologic Mapping Program.